How pipe and hat came to be on a tombstone (7)
I believe the answer is:
epitaph
'came to be on a tombstone' is the definition.
I can't judge whether this defines the answer.
'how pipe and hat' is the wordplay.
'how' is an anagram indicator (I've seen this in other clues).
'and' says to put letters next to each other.
'pipe' put after 'hat' is 'hatpipe'.
'hatpipe' anagrammed gives 'EPITAPH'.
Can you help me to learn more?
(Other definitions for epitaph that I've seen before include "Pit heap (anag)" , "Words inscribed on tombstone." , "Commemorative inscription" , "last words" , "Words carved on a gravestone" .)